Hi, I have a 40 gallon with 3 zebra danios, 2 guppies, 4 neon tetras, 3 black neons, and one baby guppy, I plan on getting rid of the black neons, but here's my future stock list 6 zebra danios 8-12 neon tetras, 3 guppies, 2-3 Otos 3-6 khuli loaches. Some shrimp and snails, anyway my question...